It is a very simple concept: Calories in, calories out. The more calories you take in, the greater your chances you will gain weight. The problem is that many people, in fact, most of us, do not want to believe it. We're always looking for an edge. We want some way that we can beat the system. So, if you're looking for a way to beat the system, you will not be happy with the results of a study done at Brigham and Women's Hospital. Researchers followed a large group of healthy, middle-aged, U.S. women for more than a decade. The first step of the study confirmed the fact that too many calories leads to weight gain (that's pretty obvious). In the second part of the study they found that for those who started off at a healthy weight, being successful at maintaining a normal weight meant participating in an average of 60 minutes a day of moderately intense exercise.
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